IT1139868B - Procedimento per la separazione continua di componenti poco volatili da un'anidride ftalica greggia prodotta per ossidazione della naftalina - Google Patents

Procedimento per la separazione continua di componenti poco volatili da un'anidride ftalica greggia prodotta per ossidazione della naftalina

Info

Publication number
IT1139868B
IT1139868B IT25334/81A IT2533481A IT1139868B IT 1139868 B IT1139868 B IT 1139868B IT 25334/81 A IT25334/81 A IT 25334/81A IT 2533481 A IT2533481 A IT 2533481A IT 1139868 B IT1139868 B IT 1139868B
Authority
IT
Italy
Prior art keywords
naphthaline
oxidation
procedure
phthalic anhydride
volatile components
Prior art date
Application number
IT25334/81A
Other languages
English (en)
Italian (it)
Other versions
IT8125334A0 (it
Inventor
Manfred Albers
Gerhard Keunecke
Herbert Krimphove
Original Assignee
Davy Mckee Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Davy Mckee Ag filed Critical Davy Mckee Ag
Publication of IT8125334A0 publication Critical patent/IT8125334A0/it
Application granted granted Critical
Publication of IT1139868B publication Critical patent/IT1139868B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
IT25334/81A 1980-12-17 1981-11-27 Procedimento per la separazione continua di componenti poco volatili da un'anidride ftalica greggia prodotta per ossidazione della naftalina IT1139868B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3047489 1980-12-17
DE3133310A DE3133310C2 (de) 1980-12-17 1981-08-22 Verfahren zur kontinuierlichen Abtrennung schwerflüchtiger Bestandteile von einem durch Naphthalin-Oxidation hergestellten Roh-Phthalsäureanhydrid

Publications (2)

Publication Number Publication Date
IT8125334A0 IT8125334A0 (it) 1981-11-27
IT1139868B true IT1139868B (it) 1986-09-24

Family

ID=25789774

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25334/81A IT1139868B (it) 1980-12-17 1981-11-27 Procedimento per la separazione continua di componenti poco volatili da un'anidride ftalica greggia prodotta per ossidazione della naftalina

Country Status (4)

Country Link
US (1) US4430163A (enExample)
DE (1) DE3133310C2 (enExample)
FR (1) FR2496101A1 (enExample)
IT (1) IT1139868B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0722645B2 (ja) * 1988-10-18 1995-03-15 出光石油化学株式会社 ポリアリーレンスルフィド製造溶媒の回収方法
US5214157A (en) * 1991-05-07 1993-05-25 Exxon Chemical Patents Inc. Process for the disposal of phthalic anhydride decomposer vapors
DE19500031A1 (de) * 1995-01-02 1996-07-04 Basf Ag Verfahren zur Herstellung von 3-Chlorphthalsäureanhydrid
US9085472B2 (en) * 2010-02-26 2015-07-21 General Electric Company Gasification system employing ejectors

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011955A (en) 1959-06-04 1961-12-05 Scient Design Co Purification of phthalic anhydride
DE1295540B (de) 1965-05-04 1969-05-22 Metallgesellschaft Ag Verfahren zur Herstellung von reinstem Phthalsaeureanhydrid
DE1768059C2 (de) 1968-03-27 1975-08-28 Davy Powergas Gmbh, 5000 Koeln Verfahren zur Gewinnung von vorgereinigtem Phthalsäureanhydrid
DE1768817B1 (de) 1968-07-03 1972-04-27 Zieren Chemiebau Gmbh Dr A Verfahren zur Reinigung von rohem Phthalsaeureanhydrid durch Destillation
GB1225607A (enExample) 1968-08-02 1971-03-17
DE1807039C3 (de) 1968-11-05 1980-06-04 Lentia Gmbh Chem. U. Pharm. Erzeugnisse-Industriebedarf, 8000 Muenchen Verfahren zur Gewinnung von reinem Phthalsäureanhydrid
FR1600064A (enExample) * 1968-12-30 1970-07-20

Also Published As

Publication number Publication date
US4430163A (en) 1984-02-07
FR2496101A1 (fr) 1982-06-18
DE3133310A1 (de) 1982-06-24
DE3133310C2 (de) 1984-06-28
FR2496101B1 (enExample) 1984-07-13
IT8125334A0 (it) 1981-11-27

Similar Documents

Publication Publication Date Title
FR2589360B1 (fr) Appareil d'assistance mecanique de la propulsion par les jambes
OA06914A (fr) Procédé de préparation d'iminodiacides substitués.
BE880291A (fr) Procede de preparation d'anhydride phtalique
BE891211A (fr) Preparation d'anhydride acetique
IT1139627B (it) Procedimento per il frazionamento della pasta ricavata dalla cartaccia nonche' impianto per l'attuazione del procedimento
IT1139868B (it) Procedimento per la separazione continua di componenti poco volatili da un'anidride ftalica greggia prodotta per ossidazione della naftalina
EP0051215A3 (en) Intermediates for the synthesis of phthalimidines
BE882820A (fr) Procede de separation par distillation d'hydroperoxydes de tertio-alkyle et de peroxydes de di-tertio-alkyle
IT1195940B (it) Procedimento per la produzione di interferone da geni umani
GB2079756B (en) Preparation of 17 -hydroxy-20-ketosteroids from 17-ones via novel 17(20)-20-isocyanides
AU528896B2 (en) Maintenance of railway track
IT8167770A0 (it) Procedimento per la produzione dil prolina per fermentazione
OA06525A (fr) Préparation de dérivés hydroxylés de l'isopropylamino-pyrimidine (séquence réduction oxygène).
GB2031017B (en) Molecular distillation of silxanes
IT1185521B (it) Preparazione del 2-cloro-4-fluorofenolo dal 4-fluorofenolo
FI812933L (fi) Anordning foer maetning av fluorescens
NO163822C (no) Fremgangsmaate for kontinuerlig fremstilling av halogenertpolymer.
NO813404L (no) Fremgangsmaate for kontinuerlig fremstilling av dialkylperoksydikarbonater
BE854148A (fr) Procede de preparation d'anhydrides par oxydation partielle d'hydrocarbures aromatiques et produits obtenus
BE888733A (fr) Conversion d'anhydride acetique
JPS57134444A (en) Conversion of acetic anhydride
BE889678A (fr) Procede de conversion d'anhydrides d'acides
RO80017A2 (ro) Mecanism de actionare a ramelor itelor
IT1167876B (it) Procedimento per la produzione della 3'-deossikanamicina a
GB2017694B (en) Purification of naphthoquinone

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971031